Use a protractor
Each interior angle measures 162 degrees.
999999
Subtract the interior angle from 180
The measure of the exterior angle.
It is: 180-exterior angle = interior angle
They are all 60 degrees.
AnswerIt is Dodecagon.To find this, you have to first find the exterior angle of the polygon. Since the exterior angle of a polygon is always supplementary to the interior angle, you subtract the measure of the interior angle from 180. 180-150=30. Now You divide 360 by the measure of the exterior angle to get the number of sides of the polygon. 360/30=12. A 12-sided polygon is called a dodecagon
128.571428 repeating
8100
360/number of sides and deduct the quotient from 180 which will give the measure of each interior angle
The only way to do it is to measure the angles, There is no formula that will give you the measure of an interior angle of any shape unless it happens to be regular. And there is nothing in the question to suggest that the shape might be regular.